diff --git a/system_tests/attempt_system_tests.py b/system_tests/attempt_system_tests.py
index c6e7297a5fa0..2cfb1672a5aa 100644
--- a/system_tests/attempt_system_tests.py
+++ b/system_tests/attempt_system_tests.py
@@ -60,6 +60,7 @@
     'datastore',
     'storage',
     'speech',
+    'vision',
     'bigquery',
     'pubsub',
     'language',
diff --git a/system_tests/data/logo.png b/system_tests/data/logo.png
new file mode 100644
index 000000000000..ae4d74fe33f9
Binary files /dev/null and b/system_tests/data/logo.png differ
diff --git a/system_tests/run_system_test.py b/system_tests/run_system_test.py
index ef38e1df4d26..c0dce7c6caaf 100644
--- a/system_tests/run_system_test.py
+++ b/system_tests/run_system_test.py
@@ -27,11 +27,13 @@
 import storage
 import system_test_utils
 import translate
+import vision
 
 
 TEST_MODULES = {
     'datastore': datastore,
     'speech': speech,
+    'vision': vision,
     'storage': storage,
     'pubsub': pubsub,
     'bigquery': bigquery,
diff --git a/system_tests/vision.py b/system_tests/vision.py
new file mode 100644
index 000000000000..258f67c8f890
--- /dev/null
+++ b/system_tests/vision.py
@@ -0,0 +1,110 @@
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""System tests for Vision API."""
+
+import os
+import unittest
+
+from google.cloud import exceptions
+from google.cloud import storage
+from google.cloud import vision
+from google.cloud.vision.entity import EntityAnnotation
+
+from system_test_utils import unique_resource_id
+from retry import RetryErrors
+
+
+_SYS_TESTS_DIR = os.path.abspath(os.path.dirname(__file__))
+LOGO_FILE = os.path.join(_SYS_TESTS_DIR, 'data', 'logo.png')
+
+
+class Config(object):
+    CLIENT = None
+    TEST_BUCKET = None
+
+
+def setUpModule():
+    Config.CLIENT = vision.Client()
+    storage_client = storage.Client()
+    bucket_name = 'new' + unique_resource_id()
+    Config.TEST_BUCKET = storage_client.bucket(bucket_name)
+    # 429 Too Many Requests in case API requests rate-limited.
+    retry_429 = RetryErrors(exceptions.TooManyRequests)
+    retry_429(Config.TEST_BUCKET.create)()
+
+
+def tearDownModule():
+    # 409 Conflict if the bucket is full.
+    # 429 Too Many Requests in case API requests rate-limited.
+    bucket_retry = RetryErrors(
+        (exceptions.TooManyRequests, exceptions.Conflict))
+    bucket_retry(Config.TEST_BUCKET.delete)(force=True)
+
+
+class TestVisionClient(unittest.TestCase):
+    def setUp(self):
+        self.to_delete_by_case = []
+
+    def tearDown(self):
+        for value in self.to_delete_by_case:
+            value.delete()
+
+    def _assert_logo(self, logo):
+        self.assertIsInstance(logo, EntityAnnotation)
+        self.assertEqual(logo.description, 'Google')
+        self.assertEqual(len(logo.bounds.vertices), 4)
+        self.assertEqual(logo.bounds.vertices[0].x_coordinate, 40)
+        self.assertEqual(logo.bounds.vertices[0].y_coordinate, 40)
+        self.assertEqual(logo.bounds.vertices[1].x_coordinate, 959)
+        self.assertEqual(logo.bounds.vertices[1].y_coordinate, 40)
+        self.assertEqual(logo.bounds.vertices[2].x_coordinate, 959)
+        self.assertEqual(logo.bounds.vertices[2].y_coordinate, 302)
+        self.assertEqual(logo.bounds.vertices[3].x_coordinate, 40)
+        self.assertEqual(logo.bounds.vertices[3].y_coordinate, 302)
+        self.assertTrue(logo.score > 0.25)
+
+    def test_detect_logos_content(self):
+        client = Config.CLIENT
+        with open(LOGO_FILE, 'rb') as image_file:
+            image = client.image(content=image_file.read())
+        logos = image.detect_logos()
+        self.assertEqual(len(logos), 1)
+        logo = logos[0]
+        self._assert_logo(logo)
+
+    def test_detect_logos_filename(self):
+        client = Config.CLIENT
+        image = client.image(filename=LOGO_FILE)
+        logos = image.detect_logos()
+        self.assertEqual(len(logos), 1)
+        logo = logos[0]
+        self._assert_logo(logo)
+
+    def test_detect_logos_gcs(self):
+        bucket_name = Config.TEST_BUCKET.name
+        blob_name = 'logo.png'
+        blob = Config.TEST_BUCKET.blob(blob_name)
+        self.to_delete_by_case.append(blob)  # Clean-up.
+        with open(LOGO_FILE, 'rb') as file_obj:
+            blob.upload_from_file(file_obj)
+
+        source_uri = 'gs://%s/%s' % (bucket_name, blob_name)
+
+        client = Config.CLIENT
+        image = client.image(source_uri=source_uri)
+        logos = image.detect_logos()
+        self.assertEqual(len(logos), 1)
+        logo = logos[0]
+        self._assert_logo(logo)