Can an Uber take you there and bring you back?
The Guru Take
Uber is an "on demand" service. No "roundtrip" concept.
Are you referring to a round trip? If so, how long are you planning to stay at the destination?
Generally speaking, since Uber is an on-demand service, you request a ride when you need a ride. Therefore, if you will be a while at the destination, you would request another ride on the way home. (There is no concept of round trip discounts.)
If you would like to make a quick stop, say to pick up a friend, pizza, or something you forgot at a store, you can always ask your driver to wait for you while you are inside. The meter will continue to run and you will owe the driver for the time he or she waits; however, as long as the stop is short, it will be cheaper than requesting another ride and incurring the one-time fees. (This is what's great about Uber. As your identity and your paymenet method are stored in the app, drivers can trust you to not run away without paying.)
With that said, the drivers will not make a significant amount, so depending on how busy they are, they may not want to wait an extended period. You may want to check with the driver before starting a trip if this is okay.