Hippopotamus 
A hippopotamus is a quiet creature with hidden strengths. Similarly, human beings have untapped potential, talents, and powers.
To dream of a hippopotamus pertains to revealing your strength and power.
Slaughterhouse
To dream that you are in a slaughterhouse implies that you may need to concede a quality or attribute so that you can continue on with your life. You may need to cut off a part of yourself in order to move ahead.
Lord Voldemort
Voldemort in a dream represents an antagonist in your life. Voldemort may also represent negative feelings, thoughts, or emotions inside yourself.
Zoological Garden
To dream that you are visiting a zoological garden means you should look to succeed at a business venture by adhering to your ethics.
Loch Ness Monster
In a dream the Loch Ness monster represents a mystery either in your past or hidden within your personality. There may be untapped parts of your personality which contain great spiritual power and you are searching for a way to access them. You may also feel that your spiritual strengths are misunderstood by others or that others do not believe in you. Let your faith in yourself be your guide and you may be able to access this power.