Question

select the two proper nouns. have you ever taken a trip to the guggenheim museum in new york city?

Explanation:

Proper nouns are specific names of people, places, organizations, etc. In the sentence "Have you ever taken a trip to the Guggenheim Museum in New York City?", "Guggenheim Museum" is the name of a specific museum (an organization), and "New York City" is the name of a specific place. These are proper nouns as they refer to unique entities.

Answer:

Guggenheim Museum, New York City