There are many to choose from so find an obscure and little known monument in an effort to enlighten the audience.
The speech on achievement is usually given by an employee or a student who has achieved a given landmark. Examples include students who are graduating.
Lincoln Memorial
A variety of lighthouses.
The will usually dictate how long a speech should be.
The landmark for intramuscular injections is the acromion process. The actually injection site should be several centimeters away from the process, on the deltoid muscle.
Yes it is a landmark, a natural landmark.
It was a landmark victory.The Tower of London is a landmark.
One should end an impromptu speech with a joke that brings the speech back to the opening lines. In this way, the speech can come full circle and end on a high note.
It depends on the type of speech. In an informal speech, slang is fine; in a formal speech, you should avoid slang.
Tinker v. Des Moines
No, "freedom of speech" should not be capitalized unless it is at the beginning of a sentence or part of a title.
landmark